Sketch A Day challenge- no.20

Concept for a portfolio piece i'm going to work on for the next few weeks. Hopefully have it ready for the new year.

The piece is called "Choose your path" and I love the idea.

I want this piece to have a heavenly mood to it so i'm going to lay of the warm colours I usually use.

I'm going to build on this concept a bit more and then model it in 3d.

Any tips on how I can improve this?

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What is this about?
I've been on DA for more than a year now and haven't really seen much improvement in my skills whilst some of my frineds have really gained valuable skills.

So to change all that I decided to do at least one sketch/ colour study to improve my techniques and speed.

Images used for my colour studies are mostly from Flikr.com
Credits to the respective owners.